Why use CURRENT_TIMESTAMP on a field that record date/time?

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On a TIMESTAMP field that records date and time when inserting a new record, it is encouraged to use as a DEFAULT value, the CURRENT_TIMESTAMP constant. … Read More

Protection against SQL Injection using PDO and Zend Framework – part 2

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Following the preview article about SQL Injection, here is more – a strong argument why you should use Zend Framework for handling database access. Zend_Db is the primary class used for access the database, but there is more: Zend_Db_Statement, Zend_Db_Select … Read More … Read More

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Protection against SQL Injection using PDO and Zend Framework

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SQL injection is a technique that exploits a security vulnerability occurring in the database layer of an application. Usually, user input is not filtered by the script and is passed into a SQL statement. PDO – PHP Data Objects – … Read More … Read More

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INSERT, UPDATE, DELETE statements with Zend_Db

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Continuing the Zend_DB article series, we are stopping now at DML statements. DML (Data Manipulation Language) statements are statements that change data values in database tables. There are 3 primary DML statements: INSERT – Inserting new rows into database tables. … Read More … Read More

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Subqueries with Zend_Db

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Continuing the Zend_DB article series, we are stopping now at subqueries. As you note, the below is a complicate query, with COUNT(), LEFT JOIN(), GROUP BY – select from 3 tables, and make a count from 2 different tables: … Read More

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